Granted Patent
Utility
US 4,433,249 · App. 06/301,180
Energy conservation system
Inventor:
Walter E. Long
Patented Case
View Patent ↗
Granted: Feb 21, 1984
Filed: Sep 11, 1981
Inventor
Walter E. Long
Assignee (at issue)
Monsanto Company
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.